Albert, I work within the 2nd phase of the market (the used car people
), and sell only to those that otherwise wouldn't buy your product to begin with. The only way I, or others, will ever own those pieces is by buying from other hobbyists that feel as I do.
So for your efforts you will still have the customers that purchased the original pieces wanting your newly imported special of the month. That market segment will always exist and will always pay your asking price. I will not, so I'm not a part of your market scope. Your business goes on with or without me, with so little impact from my part that it isn't worth considering.
To add, I'm also not able to bring any of my product to market in the first year, so short term is not something I participate in, and long term shows us new product where my items are now old news. Keep inmind, I'm not buying a piece to turn around and frag in 3 months, I'm fragging excess growth, which I won't realize for at least a year.